The problem is that progress ground to a halt. A big part of that was the redraws, but it was also how fucking long this Psychorochi fight has been stretched out. We keep having new pointless things added like Blast showing up, and there's longer and longer between releases. That goes for the webcomic, too. It's so long between releases, and then for some reason One likes to drop three webcomic chapters together right around the same time as Murata's new chapter release. So there's a flurry of activity and then nothing for a really long time.
Plus yeah, s2 being underwhelming lost all the casuals. Personally, I think the climax of the Garou arc and the aftermath are the webcomic's finest moments but we've now pretty much ensured that s3 won't even get there. If it's made.